Inactive
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Old Mission

Makes markets in hard-to-price ETFs and options

Software Engineer Intern

Software EngineeringPosted on Jul 15
Internship · Summer 2027Chicago, IL, USA$150k - $200kIn-person

About the Job

Requirements

  • Currently pursuing a bachelor's or master's degree in Computer Science, Computer Engineering, or a similar technical field.
  • Have a minimum 3.0 GPA.
  • Have at least junior standing, with a graduation date of December 2027 or May 2028.
  • Be comfortable with one or more of C++, Python, or TypeScript.
  • Have a solid grasp of computer science fundamentals, including data structures, algorithms, and systems.
  • Be able to start the internship on June 1, 2027.

Responsibilities

  • Support the development of C++-based trading applications and tools.
  • Work on hands-on projects that contribute to the firm's daily activities.
  • Gain exposure to how trading works, from underlying theory to the systems and tools built around it.
  • Attend regular sessions with senior engineers covering the fundamentals of the systems and tools used.
  • Work directly with engineers, traders, and other teams on projects that matter to the firm day to day.

About the Company

Old Mission

Makes markets in hard-to-price ETFs and options

Old Mission trades its own money as a market maker, which means it stands ready to buy and sell exchange-traded funds, options, bonds, and currencies so investors can trade when they need to. It made its name on exchange-traded funds that rarely trade and are hard to price, which other market makers often would not quote. Its researchers turn past market data into pricing models, engineers build the automated systems that send quotes to exchanges worldwide, and traders manage the resulting risk. The firm earns the gap between its buying and selling prices, and asset managers and fund issuers can also trade with it directly. Old Mission was founded in 2008 and is based in Chicago, with offices in New York and London.

Company size
201-500
Company stage
Private
Total funding
Not listed
Headquarters
Chicago, IL
Founded
2008

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